Singlet oxygen-sensitized delayed fluorescence of common water-soluble photosensitizers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10173451" target="_blank" >RIV/00216208:11320/13:10173451 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1039/c3pp50170a" target="_blank" >http://dx.doi.org/10.1039/c3pp50170a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c3pp50170a" target="_blank" >10.1039/c3pp50170a</a>
Alternative languages
Result language
angličtina
Original language name
Singlet oxygen-sensitized delayed fluorescence of common water-soluble photosensitizers
Original language description
Six singlet oxygen (1O2) photosensitizers (PS) - 5,10,15,20-tetrakis(1-methyl-4-pyridinio) porphine (TMPyP), meso-tetrakis(4-sulfonathophenyl)porphine (TPPS4), Al(III) phthalocyanine chloride tetrasulfonic acid (AlPcS4), eosin Y, rose bengal, and methylene blue - were investigated in terms of their ability to produce delayed fluorescence (DF) in solutions at room temperature. All the PS dissolved in air-saturated phosphate buffered saline ( pH 7.4) exhibit detectable DF, which can be quenched by 10 mM NaN3, a specific 1O2 quencher. The DF kinetics has a biexponential rise-decay character in a microsecond time domain. Therefore, singlet oxygen-sensitized delayed fluorescence (SOSDF), where the triplet state of PS reacts with 1O2 giving rise to an excited singlet state of PS, is the prevailing mechanism. It was confirmed by a monoexponential decay of triplet-triplet transient absorption kinetics, dependence of SOSDF kinetics on oxygen concentration, absence of SOSDF in nitrogen-saturated
Czech name
—
Czech description
—
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BO - Biophysics
OECD FORD branch
—
Result continuities
Project
<a href="/en/project/GBP501%2F12%2FG055" target="_blank" >GBP501/12/G055: Photosynthesis Research Center</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Photochemical and Photobiological Sciences
ISSN
1474-905X
e-ISSN
—
Volume of the periodical
12
Issue of the periodical within the volume
10
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
1873-1884
UT code for WoS article
000324890300015
EID of the result in the Scopus database
—